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Job Title: Web Solutions Engineer/Fullstack Engineer Location: Address: London - WC2H 8AG Mode of working: Hybrid (3 Days in the Office) Duration: 6+ Months contract initially Job Specification: Role Overview We are looking for an experienced Software Engineer who can work independently on developing new features, supporting existing platforms, and communicating effectively with stakeholders. The role requires strong technical ownership and the ability to contribute in a fast-paced, evolving environment. Key Responsibilities: • Independently design, develop, and deliver new features, • Maintain and support existing platforms and applications, • Collaborate with Product Managers, UX Researchers, and Engineers, • Communicate progress, risks, and updates clearly to stakeholders, • Contribute to design discussions and technical decision-making Experience Required: • 5 to 15 years of relevant software development experience, • Python, • Angular, • AI or Artificial Intelligence

Reed.ai is looking for a Senior Developer to join their team in Holborn, London. Overview Join a collaborative, forward-thinking team that values creativity, experimentation, and impact—and help redefine the future of recruitment through intelligent, human-centered technology. We’re looking for a talented and experienced Senior Fullstack Developer to play a pivotal role in the development and growth of a brand-new AI recruitment platform as it prepares to enter the market this summer. This is a rare opportunity to take a product from Beta launch to full market release and beyond, shaping its trajectory at every stage. You’ll be central to transitioning product development from an external agency to an in-house team, while driving technical excellence, user adoption, and long-term innovation. This is a chance to build something meaningful from the ground up—within a startup-style venture backed by the strength and stability of an established business. Key Responsibilities * End-to-end development of high-quality, scalable SaaS platforms from design through deployment and maintenance. * Architect and implement robust backend services primarily using Python and PostgreSQL. * Develop and maintain responsive, performant front-end applications with TypeScript and modern frameworks (e.g., NextJS, NodeJS). * Collaborate with product owners, UX/UI designers, and other stakeholders to translate requirements into technical solutions. * Champion agile ways of working, driving continuous improvement and delivery excellence. * Integrate and optimize AI tools and APIs to enhance development productivity and platform capabilities. * Provide technical mentorship and leadership to development teams, fostering best practices in coding, testing, and deployment. * Participate in code reviews, architecture discussions, and system design decisions. * Troubleshoot and resolve complex technical issues across the full stack. * Ensure software security, scalability, and performance are maintained at all times. * Keep abreast of emerging technologies and industry trends to inform strategic decisions. Skills and Experience * Minimum 8 years of commercial software development experience, with at least 3 years in a senior or technical lead role. * Proven expertise in full-stack development using: * TypeScript (and JavaScript frameworks such as NextJS, Node, or Tailwind) * Python (including frameworks like Django, Flask, or FastAPI) * PostgreSQL and relational database design, optimization, and maintenance. * AI Development Tools such as Windsurf, Aider or Augment. * Demonstrable experience building and scaling SaaS platforms in a production environment. * Strong understanding and practical application of Agile software development methodologies. * Hands-on experience integrating AI tools, APIs, or platforms into software solutions. * Domain experience in Recruitment Technology, HRTech, or closely related fields is a must. * Proficient in software architecture, microservices, RESTful API design, and cloud-native development (AWS, Azure, or GCP preferred). * Experience with CI/CD pipelines, automated testing, and DevOps practices. * Solid grasp of security best practices, data privacy, and GDPR compliance. * Excellent communication skills, with the ability to work effectively across multidisciplinary teams and stakeholders. * Strong problem-solving skills and a pragmatic approach to delivering solutions. * Desirable * Experience with containerisation and orchestration tools such as Docker and Kubernetes. * Familiarity with event-driven architecture and message brokers (e.g., Kafka, RabbitMQ). * Knowledge of front-end performance optimisation and accessibility standards. * Exposure to machine learning pipelines or data engineering workflows. * Prior experience working in startup environments or high-growth technology companies. Benefits * Hybrid working as standard * 25 days annual leave plus bank holidays * Flexible holiday scheme * Paid time off to move home * Contributory pension scheme * Enhanced family leave benefits * Insurance benefits including life assurance * Love Mondays events * Discount scheme including gyms and popular retailers * Range of wellbeing and mental health support avenues * Office in a fantastic location, with countless bars, restaurants and theatres right on the doorstep.

The pitch. It’s a serious engineering role with a great team – and meaningful responsibility. This is not a narrow “ticket-closing” developer job. You won’t be handed tightly scoped Jira tasks inside a heavily layered team structure. You won’t be maintaining a disposable MVP. And you won’t be managing people. Instead, you’ll be working on the core platform that underpins Outsmart’s crowdsourcing operations – a mature, revenue-generating system that has evolved over years and continues to scale. If you enjoy owning real systems, thinking architecturally, improving legacy code thoughtfully rather than rewriting it, and being trusted to deliver without heavy supervision, this role will feel unusually well-matched. The role As Senior Fullstack Software Engineer, you will help design, build and maintain the production systems that power Outsmart’s platform. You’ll work closely with our CTO, operating as a high-agency individual contributor with genuine ownership across backend systems, infrastructure and platform evolution. This is a role for someone who wants to: • Work on real, live systems with meaningful operational responsibility, • Make architectural decisions, not just implement them, • Improve and extend an existing platform with care and judgement, • Help shape the engineering foundations for the next stage of company growth You will be trusted to take product and operational requirements and translate them into robust, production-ready solutions. What you’ll be doing • Designing and maintaining backend services primarily in Python, • Developing and evolving well-structured RESTful APIs, • Designing and improving data models across relational (e.g. PostgreSQL) and NoSQL databases, • Working across the stack where needed, including JavaScript, modern HTML/CSS, and utility frameworks such as Tailwind, • Contributing to cloud-based infrastructure (e.g. Google Cloud), deployment pipelines and DevOps practices, • Debugging live production issues with a calm, root-cause mindset, • Incrementally improving system architecture using sound design principles (including modular design, DDD-style thinking, and pragmatic architectural patterns), • Reviewing code, raising standards constructively, and contributing to a disciplined engineering culture, • Leveraging modern tooling (including AI-assisted development) to improve quality and velocity This is not greenfield experimentation. It is thoughtful, high-quality engineering on systems that matter. The environment We are a small, intellectually serious company. That has advantages and responsibilities. You will: • Speak directly with senior decision-makers when needed, • Operate without perfect documentation, • Balance speed with long-term maintainability This role suits someone comfortable with autonomy, accountability and cross-functional collaboration. Who this role is for This role is designed for someone who is: • 8–15 years into their engineering career, • Has worked in a small company (c. 5–30 people) or similarly lean environment without heavy process, • Experienced in inheriting and improving mature systems, • Comfortable reading and navigating complex legacy code, • Strong in systems thinking (trade-offs, scalability, cost implications), • Backend-heavy, with strong Python expertise, • Operationally mature – you’ve supported production systems, not just built features You are likely: • Calm under pressure, • Direct but not ego-driven, • Curious and thoughtful rather than dogmatic, • Comfortable challenging ideas constructively If you primarily identify as a manager, a greenfield-only builder, or someone who prefers heavy structure and layered sign-off, this role is unlikely to be a good fit. Practicalities Schedule: Monday to Friday Weekends: No Location: UK-based Working style: Hybrid (remote and London office) Why Outsmart Insight? Outsmart Insight operates at the intersection of technology, intelligence and large-scale coordination. Our internal platform powers a global network and supports complex, high-trust client engagements. We are deliberately serious about quality, reliability and long-term thinking. As we grow, we are investing in strengthening our engineering foundations – building systems that are robust, scalable and thoughtfully designed. If you want to work somewhere where your engineering judgement genuinely matters, this is that opportunity. Our values • Smart minds, working together, • Quality delivered every time, • Strong client relationships built on trust, • Hard work, rewarded, • A happy, healthy team Apply Send a short cover letter and a two-page CV to , outlining why this role, and this type of engineering work, appeals to you. Please note: only applications sent directly to this email address will be considered.

Altimetrik is a digital enablement company. We deliver bite-size outcomes to enterprises and start-ups across various industries in an agile way, helping them scale and accelerate their businesses. What makes us unique in the IT market is our innovation-first approach, strong focus on core development, and the ability to tackle complex, high-impact challenges for some of the world’s largest organizations. Our client is a leading global financial institution with its key European hub located in London. The London office serves as the headquarters for the EMEA region (Europe, Middle East, and Africa) and plays a critical role in global operations. It brings together teams responsible for investment banking, markets and trading, corporate banking, and technology, supporting some of the world’s largest financial transactions and institutions. The organization operates in a highly dynamic, international environment, focusing on building secure, scalable, and innovative financial systems that power global banking services. We are currently looking for a Senior Fullstack Developer (Java+React) to join the team. The role involves working in a modern microservices architecture and contributing to the development of scalable and efficient applications. The ideal profile is a FullStack Developer with both backend and frontend expertise. The expected skill distribution is approximately 60% backend (Java/microservices) and 40% frontend (React), with flexibility depending on experience. Requirements: Java, Spring Boot, Microservices, Node.js, TypeScript, React. Location: London (hybrid) 🔥 We build real AI products 🤓 We learn fast and experiment 🤝 We value ownership and collaboration If you’d like to work in an environment that values trust, innovation, and real impact — don’t hesitate, just apply!

Contribute to the wider MHCLG developer community. Provide technical leadership, coaching and mentoring to your assigned team.

Senior FullStack Developer Duration: 4 months Location: Remote £600 - £770 per day Inside IR35 - Umbrella only Active SC clearance or eligibility to obtain it Our client is seeking an experienced Senior Cloud FullStack Developer to join their dynamic team on a remote basis.

Senior Full Stack JavaScript Developer. We are on the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team.

This job is with State Street, an inclusive employer and a member of myGwork – the largest global platform for the LGBTQ+ business community.Please do not contact the recruiter directly.Role Summary : We are seeking an experienced Java Full Stack Developer to join our Digital Asset development te

As a Senior Developer, you will guide the design, development, and maintenance of our cloud-based applications while mentoring junior and mid-level developers. Cloud Expertise: Extensive experience with cloud platforms (AWS, Azure, or Google Cloud) and services. Application Developer - Cloud FullSta

We are looking for a seasoned Senior Fullstack Engineer to join our engineering team. Minimum of 5 years of experience as a fullstack developer with significant experience in Ruby and Node.

London - hybrid 1-2 days onsite every 2 weeks.Intermediate to advanced practical experience with: React and TypeScript Python AWS services i.Athena/Glue, DynamoDB, ECS, S3, Lambda, SQS, Step Function, etc.Automated testing frameworks for Python and JavaScript Terraform for infrastructure-as-code Agi

Objected-Oriented User-Facing Software Developer Profile.

There will be significant interaction with senior developers across other work streams as we integrate an increasingly complex product set. The successful candidate will be comfortable driving design and architecture, rationalizing business requirements and mentoring less experienced developers.

Senior Full Stack JavaScript Developer. We are on the lookout for a talented and motivated Full Stack JavaScript Developer to join a dynamic Engineering team. Collaborate with architects and other developers to design robust, scalable, and secure architectures for new projects and enhancements to ex

We’re looking for a Senior Fullstack Developer who can take features from concept. Design, build, and maintain scalable and accessible fullstack features using TypeScript, ReactJS, NextJS, and NodeJS.

Founding Senior Fullstack Developer ideally with Medtech experience.

A leading Medtech company based in London is seeking a Founding Senior Fullstack Developer with experience in AI integration.

Job Title: .Net Developer Location: Bromley, UK Duration: Two year + (PAYE position inside IR35) Pay: £55-60 per hour = £(Apply online only) per day (depending on experience) Principal Duties and Responsibilities: In Equity Linked Technology, we implement innovative software solutions to provide our clients with a seamless pre-trade experience. Our engineers solve some of the most complex technical problems in the world of Equity Derivatives, ranging from fast-paced, high-volume vanilla options to complex structured notes and quantitative algorithmic indices. This in turn translates to challenges that involve providing low-latency solutions for external vendor pricing on the street and at the same time the solution should be simple enough to support and onboard a wide range of products and clients. This is an extremely exciting time as the group is supporting significant business growth, while undergoing transformation into an Agile micro service-oriented infrastructure. It is an interactive and dynamic working environment, with the opportunity to interface directly with Front-Office users and enabling you to directly observe the impact of your deliveries. We are also in early stages of building out our platform so any candidate coming in will have the opportunity to contribute to the design and impact shape of our technology stack. Candidates will be proficient in software design focused on a cross-language REST based n-tier architecture and executed using agile methodologies (Scrum, Test Driven Development, unit/integration testing, pair programming, etc.). The successful candidate will be comfortable driving design and architecture, rationalizing business requirements and mentoring less experienced developers. There will be significant interaction with senior developers across other work streams as we integrate an increasingly complex product set. ROLE / RESPONSIBILITIES · Develop a thorough understanding of our entire technology stack · Design and develop new features within existing services; create new services to expand the overall framework · Contribute to future design and architecture · Plan work in an agile manner with other team members · Write acceptance tests in coordination with QA · Provide L3 user support · Communicate with our business and platform partners · Improve and develop our CI pipeline and deployment strategies REQUIRED SKILLS/EXPERIENCE · Demonstrable experience of having designed and developed complex server-side functionality in C# · SQL - preferably Oracle · Shell scripting and basic Unix knowledge desirable · Proficient in writing unit, integration, and acceptance tests · Comfortable in an agile working environment · Self-starter and proactive DESIRABLE SKILLS/EXPERIENCE • Experience with UI technologies; C#, WPF/Winforms, RESTful services, • Knowledge of Equity Derivatives

A recruitment agency is seeking a Senior Fullstack Developer in Chandlers Ford. This hands-on role involves developing and maintaining core systems, mentoring junior developers, and contributing to APIs and IoT projects.

Full Stack Developer (React, Python and AWS). We are looking for a Senior Full Stack Developer to join a leading financial services company that is dedicated to transforming the experience for their customers using technology. Collaborative Development: Work closely with product managers, UX/UI desi

Lead Full Stack Java Developer. Lead Full Stack Java Developer. Lead and manage a team of full stack developers, providing.

We are looking for an enthusiastic and collaborative fullstack developer (2-3 years experience) to join our highly ambitious team, helping us deliver digital products that will enhance our position as the leading Digital Cancer Care solution.

Opus Recruitment Solutions provided pay range.This range is provided by Opus Recruitment Solutions.Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.I’m proud to partner with Europe’s largest board technology and advisory firm.Through a suite

Reports to: Co-founder, Chief Product & Technology Officer.At Heat Geek, we are tackling one of the UK’s biggest carbon contributors: home heating.UK carbon emissions stems from home heating – and that contribution is even bigger on a global scale.At Heat Geek, we are changing that.By simplifyin

Founding Senior Fullstack Developer ideally with SaaS experience.

Develop and maintain fullstack software solutions.

Job Title: Java Fullstack developer (AngularJS, ReactJS). We are seeking experienced Java Fullstack developer (AngularJS, ReactJS) with strong expertise in banking domain who will oversee the planning, execution, and successful delivery of projects. We are seeking a highly skilled Java Full Stack De

Develop and maintain fullstack software solutions.

Fullstack Developer (Python/React) – Would you like to work for a fast-growing VC-backed energy technology startup who are currently looking for a Full-Stack Developer to join its expanding product development team. If you’re a Fullstack (Python/React) Developer looking to work for a start-up in

Develop and maintain fullstack software solutions.

SC Cleared Full-Stack Developer. A leading consultancy seeks a Python/React/TypeScript developer for cloud-native AWS apps supporting high-impact public sector programmes in Agile teams. AWS Certified Developer - Associate.

A tech company is seeking a Fullstack PHP Developer to work remotely from the UK, offering a salary of up to £55,000.

Web Designer and Developer - Central London. Our Client an international company is looking to recruit a Web Developer with at least 4 years experience. The Client would like to see at least 3-4 years of experience as a web developer, with specific experience creating, implementing, and sustaining r

As a Fullstack Developer in the IP Development team, you will design, build, and maintain scalable, high-quality software across both front-end and back-end services.

Senior Product-Focused Full Stack Engineer (Frontend-Leaning).Hybrid – Brick Lane, London (1 day/week) | £80–100k DOE.A contemporary art e‑commerce platform is looking for a Senior Product‑Focused Full Stack Engineer with strong front‑end skills.The business works with leading contemporar

A dynamic eCommerce technology firm is seeking a talented Fullstack Developer to enhance its award-winning Channel Optimizer platform.

What we’re looking for from a Back End Developer:. Experience needed as a Back End Developer:. BackEnd Technical Support Developer.

As a Fullstack Software Engineer you will be focused on building out one of our cloud platforms, which runs on AWS. You should primarily be a strong Frontend Developer, but be able to handle yourself when navigating and contributing to the backend.

A dynamic tech company in Bromley is seeking a skilled developer experienced in C# and Agile methodologies to design and develop robust server-side functionality.